LM556 Datasheet - Texas Instruments

LM556 Dual Timer

The LM556 dual-timing circuit is a highly-stable controller capable of producing accurate time delays or oscillation. The LM556 device is a dual-timing version of the LM555 device. Timing is provided by an external resistor and capacitor for each timing function. The two timers operate independently.

LM556 Features

* 1 Direct Replacement for SE556/NE556

* Timing From Microseconds Through Hours

* Operates in Both Astable and Monostable Modes

* Replaces Two 555 Timers

* Adjustable Duty Cycle

* Output Can Source or Sink 200 mA

* Output and Supply TTL-Compatib

LM556 Datasheet (1.09 MB)